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Finding the Fourth Proportional to 60,561, 90,844.74 and 19,011.24

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Solution

The fourth proportional to 60,561, 90,844.74 and 19,011.24 is: 28,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,561 : 90,844.74 = 19,011.24 : x
  2. Step 2: Convert to fraction form
    60,561/90,844.74 = 19,011.24/x
  3. Step 3: Cross multiply
    60,561x = 90,844.74 × 19,011.24
  4. Step 4: Simplify right side
    60,561x = 1,727,071,154.88
  5. Step 5: Solve for x
    x = 1,727,071,154.88/60,561
  6. Step 6: Final answer
    x = 28,517.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.